"While that’s flattering as hell, you could have put Frankie Muniz into any of the movies I've been in and those movies still would've still been number one," Shia said, adding that he's not afraid of reprisals from Frankie because he doesn't "hang out in Frankie Muniz-type zones".

Frankie, now the drummer in a band named You Hang Up, fired back via Twitter: "Dear Shia Labeouf. It's getting creepy the fact that you can't stop talking about me. It's been 12 years now," he wrote. "I don't know you. Thanks."

The pair last duelled in 2003, when Shia told E! News that Frankie was always "looking down on [him]" when their paths crossed.